Panasonic SC‑HTB680EBK Surround Sound.

Mar 23, 2017
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My Panasonic SC-HTB680EBK Surround Sound I connected it to my iPhone today to play music but now the remote for the surround sound isn't working at all. I have changed the battery in the remote but still it's not working.
Can anyone give me a step by step fix please
Gill